Product Overview
When an AS-Interface segment stalls, every downstream station waits with it. The Schneider Electric 140EIA92100C is an AS-Interface master module built for the Modicon Quantum automation platform, and it keeps that segment moving. It follows the AS-i V1 standard with standard addressing, so it slots into existing architectures without re-engineering the network.
This is a practical, service-minded choice for plants that need spares when they need them. Oil AutoTech supplies the 140EIA92100C as a ready-to-ship spare for oil, gas and industrial automation applications, with fast dispatch, worldwide.
Technical Specifications
Cycle Time and Throughput
The module’s maximum cycle time is 5 ms. In practice, that means the master refreshes its I/O image quickly enough for real-time data exchange across the segment. Transmission runs at 167 kbit/s, and the AS-i cabling system cycle time follows the standard formula of 156 x (n + 1) µs with 31 slaves.
I/O Capacity and Server Support
The 140EIA92100C handles 124 discrete inputs and 124 discrete outputs, and it communicates with up to 31 server devices. One master can therefore cover a full AS-i segment of sensors and actuators without adding hardware.
Electrical and Environmental Ratings
The module draws its supply via the AS-Interface line, with a rated supply voltage of 30 V DC. Current consumption is <= 100 mA, with a typical draw of 60 mA at 30 V DC. Internal reverse polarity protection guards the module against miswiring. The unit carries the CE marking, operates from 0 to 60 °C, and offers IP20 protection.
Comparison With Alternative Approaches
- 140EIA92100C (AS-i master): 5 ms cycle, 124 DI / 124 DO, 31 servers, 167 kbit/s, 30 V DC via AS-i line.
- Distributed I/O over a general fieldbus: typically requires separate power and network cabling per drop, plus configuration overhead.
- Hardwired discrete I/O: simple but cable-intensive, with no device-level diagnostics.
For compact, cable-light device networks, the AS-i master approach usually wins on installation effort.
Integration and Wiring Notes
The module connects through one male SUB-D 3-pin connector for the AS-Interface link, and it is compatible with the AS-Interface cabling system. Bus length reaches 0…100 m without a repeater. Local signalling uses 32 LEDs for slave addresses and the state of slave I/O bits, which makes fault-finding at the panel straightforward.
Up to 2 modules can be fitted per Quantum PLC distributed drop, and 4 per local or remote drop. If you are wiring into a wider network, confirm cables and any gateway requirements with your supplier before ordering.
Applications
In oil and gas terminals, the 140EIA92100C concentrates valve position feedback and actuator commands onto one segment. In water treatment and packaging lines, its 5 ms cycle keeps high-count sensor arrays synchronised. Where panel space is tight, the IP20 rating suits clean control cabinets rather than washdown areas.
Selection Checklist
Before you buy, verify your AS-i version (V1), your server device count (up to 31), and your drop configuration. The module carries UL, FM, C-Tick, CSA and GOST certifications. Please verify current lifecycle status and availability with Oil AutoTech before ordering.
Contact Oil AutoTech today for pricing and availability.
